Possible BGP hijack

Beginning at 2019-09-09 10:28:57, we detected a possible BGP hijack.

Prefix 156.227.0.0/16, Normally announced by AS134548 DXTL-HK DXTL Tseung Kwan O Service, HK

Starting at 2019-09-09 10:28:57, a more specific route (156.227.248.0/22) was announced by ASN 18046.

This was detected by 151 BGPMon peers.

Expected
Start time: 2019-09-09 10:28:57 UTC
Expected prefix: 156.227.0.0/16
Expected ASN: 134548 (DXTL-HK DXTL Tseung Kwan O Service, HK)
Event Details
Detected advertisement: 156.227.248.0/22
Detected Origin ASN 18046 (DONGFONG-TW DongFong Technology Co. Ltd., TW)
Detected AS Path 15557 4637 18046
Detected by number of BGPMon peers: 151

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